/Engine/Plugins/Animation/ControlRig/Source/ControlRig/Public/Rigs/RigHierarchy.h
Sets the all of the weights of the parents of a multi parent element
Returns true if changing the weight was successful
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category=URigHierarchy) bool SetParentWeightArray ( [FRigElementKey](API\Plugins\ControlRig\Rigs\FRigElementKey) InChild, [TArray](API\Runtime\Core\Containers\TArray)< [FRigElementWeight](API\Plugins\ControlRig\Rigs\FRigElementWeight) > InWeights, bool bInitial, bool bAffectChildren )